CN118851013A - Double-drive electric winch - Google Patents

Abstract

The present invention belongs to the technical field of winches, and specifically relates to a dual-drive electric winch, which includes a winch frame, a winch drum, two drive motors, two right-angle commutators and two planetary reducers. The winch drum is rotatably assembled in the winch frame, and a steel wire rope is wound on the winch drum; the two drive motors are respectively arranged outside the winch frame and located on the axial left and right sides of the winch drum, and the axis of the output shaft of the drive motor is perpendicular to the axis of the winch drum; the two right-angle commutators are both located outside the winch frame, and the two planetary reducers are both located inside the winch frame, the input end of the right-angle commutator is transmission-connected with the corresponding drive motor, and the output end of the right-angle commutator is transmission-connected with the corresponding planetary reducer; the winch drum is connected between the output shafts of the two planetary reducers. The present invention can reduce the axial size of the dual-drive electric winch, improve the lifting force, and realize non-stop maintenance.

Description

Dual drive electric winch

Technical Field

The invention belongs to the technical field of winches, and in particular relates to a dual-drive electric winch.

Background Art

A winch, also known as a hoist, is a device that mechanically winds a rope or chain, mainly used to lift, lower or secure heavy objects. It usually consists of one or more drums, a drive mechanism, a control system, and ropes or chains for lifting. Winches are widely used in various industrial and civil fields, especially in mining, construction, shipping, transportation and rescue operations.

At present, most winches are electric winches, and the structure is shown in Figure 1. They are directly connected to a motor, a planetary reducer and a winch body, and the motor and the planetary reducer are located on the same side of the winch body. Since this type of electric winch adopts a side-by-side direct connection method, the overall length of the electric winch is relatively long and the floor space is relatively large. In addition, when a single motor and reducer are used, the lifting force of the electric winch is relatively small, and the weight range of the object lifted is limited. In addition, if the motor fails, the winch will be unusable, affecting production.

Summary of the invention

In order to solve the problems existing in the prior art, the present invention provides a dual-drive electric winch.

In order to solve the above problems, the dual-drive electric winch provided by the present invention adopts the following technical solutions:

A dual-drive electric winch comprises a winch frame, a winch drum, a driving motor, a right-angle commutator and a planetary reducer; the winch drum is rotatably mounted in the winch frame, a steel wire rope is wound around the winch drum, and a through hole for the steel wire rope to pass through is provided on the winch frame; two driving motors are provided, which are respectively arranged outside the winch frame and on the left and right sides of the axial direction of the winch drum, and the axis of the output shaft of the driving motor is perpendicular to the axis of the winch drum;

The right-angle commutator and the planetary reducer are respectively provided with two, the two right-angle commutators are both located outside the winch frame, and the two planetary reducers are both located inside the winch frame. The input end of the right-angle commutator is transmission-connected to the corresponding drive motor, and the output end of the right-angle commutator is transmission-connected to the corresponding planetary reducer; the winch drum is connected between the output shafts of the two planetary reducers to rotate with the output shafts of the planetary reducers.

The beneficial effects of the present invention are as follows: the present invention arranges two driving motors vertically on both sides of the axial direction of the winch drum, and simultaneously sets the winch drum and the planetary reducer together in the winch frame, thereby reducing the axial size of the dual-drive electric winch as a whole, making the structure more compact and occupying less space; in addition, the use of two driving motors doubles the lifting force of the winch; furthermore, when one of the driving motors fails, the other driving motor can still drive the winch drum to rotate, thereby realizing non-stop maintenance and ensuring continuous production.

Furthermore, the two driving motors are symmetrically arranged on the left and right sides of the winch drum in the axial direction.

Beneficial effects: When the two drive motors work symmetrically, they can balance the torque and load between each other, reducing the additional stress and vibration caused by asymmetry; in addition, the symmetrical arrangement can make the rotation of the drum smoother and more efficient because the driving force is evenly distributed around the winch drum.

Furthermore, the winch frame includes a base and a supporting vertical plate, the base is provided with a through hole for the steel wire rope to pass through, two supporting vertical plates are provided, the supporting vertical plates include an integrally formed drum mounting plate section and a motor mounting plate section, the winch drum is rotatably assembled between the two drum mounting plate sections, the drum mounting plate sections 102 of the two supporting vertical plates are respectively connected to the left and right sides of the base, the motor mounting plate sections of the two supporting vertical plates are cantilevered on the outside of the base, the drive motor is provided with a motor connecting plate, the motor connecting plate is connected to the corresponding motor mounting plate section so that the drive motor is arranged in the air.

Beneficial effects: The winch frame has a simple structure and can reasonably utilize the installation space inside and outside the winch frame.

Furthermore, reinforcement rods are connected between the two motor mounting plate sections and between the two motor roller mounting plate sections 102; and at least two reinforcement plates are connected between the opposite sides of the two motor mounting plate sections and the base.

Beneficial effects: ensuring the structural strength of the winch frame and improving the reliability of the drive motor fixation.

Furthermore, the interior of the winch drum is hollow, and the left and right ends of the winch drum are coaxially sleeved outside the output shafts of the two planetary reducers; a first flange is coaxially connected to the output shaft of the planetary reducer, and a second flange is coaxially connected to the winch drum, and the first flange is connected to the second flange.

Beneficial effect: It is convenient for the transmission connection between the winch drum and the planetary reducer, and can further save the axial size of the winch frame.

Furthermore, a fixing plate is provided on the base, an angle-adjustable crank arm is provided on the fixing plate, a rope-guiding rod is connected to the end of the crank arm, the rope-guiding rod is located between the first flange and the second flange, and the axis of the rope-guiding rod is parallel to the axis of the winch drum.

Beneficial Effects: The guide rope can help guide the wire rope to run along the predetermined path, reducing the direct contact between the wire rope and other hard surfaces, thereby reducing wear.

Furthermore, the winch drum outer cover is provided with an inverted U-shaped protective plate, which includes a top plate and side plates connected to the front and rear sides of the top plate. The top plate is erected above the two drum mounting plate sections, and a clearance opening for avoiding the motor mounting plate section is provided at the connection between the top plate and the side plate so that the side plate is located on the inner side of the two drum mounting plate sections.

Beneficial effects: The inverted U-shaped protective plate is easy to install, can effectively protect the winch drum, and improve safety during work.

Furthermore, an observation port is provided on the top plate, and the length of the observation port is not less than the axial length of the winch drum.

Beneficial effect: It is convenient for manual observation of the lowering of the wire rope on the winch drum and the rotation of the winch drum.

BRIEF DESCRIPTION OF THE DRAWINGS

By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

FIG1 is a schematic structural diagram of an existing winch;

FIG2 is a schematic diagram of the three-dimensional structure of the dual-drive electric winch of the present invention;

FIG3 is a schematic diagram of the three-dimensional structure of the winch frame and the planetary reducer after being assembled in FIG1 ;

FIG4 is a schematic diagram of the three-dimensional structure of the winch drum in FIG1 ;

FIG. 5 is a schematic structural diagram of the inverted U-shaped protective plate in FIG. 1 .

Description of reference numerals:

1. Winch frame; 101. Base; 102. Drum mounting plate section; 103. Motor mounting plate section; 104. Reinforcement rod; 105. Reinforcement plate; 106. Fixed plate; 107. Crank arm; 108. Rope guide rod; 109. Through-hole; 2. Winch drum; 201. First flange; 202. Second flange; 3. Drive motor; 301. Motor connecting plate; 4. Right-angle commutator; 5. Planetary reducer; 6. Wire rope; 7. Inverted U-shaped protective plate; 701. Observation port; 702. Avoidance port.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

Embodiment 1 of the dual-drive electric winch provided by the present invention:

As shown in FIG. 1 and FIG. 2 , the dual-drive electric winch includes a winch frame 1 , a winch drum 2 , two drive motors 3 , two right-angle commutators 4 and two planetary reducers 5 .

As shown in FIG2 , the winch frame 1 includes a base 101 and a support vertical plate. There are two support vertical plates, each of which includes an integrally formed drum mounting plate section 102 and a motor mounting plate section 103. The two drum mounting plate sections 102 are respectively connected to the left and right sides of the base 101. The drum mounting plate section 102 and the motor mounting plate section 103 are connected by an arc transition, and the motor mounting plate section 103 is cantilevered outside the base 101. A reinforcement rod 104 is vertically connected between the two motor mounting plate sections 103 and between the two motor drum mounting plate sections 102; three reinforcement plates 105 are connected between the opposite sides of the two motor mounting plate sections 103 and the base 101.

The two planetary reducers 5 are respectively mounted on the corresponding drum mounting plate sections 102, and the two planetary reducers 5 are both located in the winch frame 1. As shown in FIG3 , the winch drum 2 is located in the winch frame 1, on which a steel wire rope 6 is wound, and the interior is hollow, and the left and right ends of the winch drum 2 are respectively coaxially sleeved outside the output shafts of the two planetary reducers 5; the output shaft of the planetary reducer 5 is coaxially connected with a first flange 201, and the winch drum 2 is coaxially connected with a second flange 202, and the first flange 201 is connected to the second flange 202, so that the rotation of the winch drum 2 can be realized through the planetary reducer 5, and the rotation assembly of the winch drum 2 between the two drum mounting plate sections 102 is realized. In addition, a fixing plate 106 is provided on the base 101, and an angle-adjustable crank arm 107 is provided on the fixing plate 106. A rope guide rod 108 is connected to the end of the crank arm 107. The rope guide rod 108 is located between the first flange 201 and the second flange 202, and the axis of the rope guide rod 108 is parallel to the axis of the winch drum 2, which helps guide the steel wire rope 6 to run along a predetermined path, reduces the direct contact between the steel wire rope 6 and other hard surfaces, and thus reduces wear. A through hole 109 for the steel wire rope 6 to pass through is provided on the base 101, so that the steel wire rope 6 can be hoisted smoothly.

The two drive motors 3 are symmetrically arranged on the left and right sides of the winch drum 2. Each drive motor 3 is provided with a junction box and a motor connection plate 301. The motor connection plate 301 is connected to the corresponding motor mounting plate section 103 so that the drive motor 3 is suspended. The axis of the output shaft of the drive motor 3 is perpendicular to the axis of the winch drum 2.

As shown in Fig. 1, the two right-angle commutators 4 are both located outside the winch frame 1, that is, outside the drum mounting plate section 102. The input end of the right-angle commutator 4 is transmission-connected to the corresponding drive motor 3, and the output end of the right-angle commutator 4 is transmission-connected to the corresponding planetary reducer 5. Two meshing bevel gears are arranged inside the right-angle commutator 4, and the axes of the two bevel gears are perpendicular to each other. One bevel gear is connected to the output shaft of the drive motor 3, and the other bevel gear is connected to the input shaft of the planetary reducer 5. The right-angle commutator 4 is provided with a gear oil port and an encoder.

As shown in Fig. 1 and Fig. 4, the outer cover of the winch drum 2 is provided with an inverted U-shaped protective plate 7, which includes a top plate and side plates connected to the front and rear sides of the top plate. The top plate is placed above the two drum mounting plate sections 102, and a clearance opening 702 for avoiding the motor mounting plate section 103 is provided at the connection between the top plate and the side plate so that the side plate is located on the inner side of the two drum mounting plate sections 102. An observation port 701 is provided on the top plate, and the length of the observation port 701 is greater than the axial length of the winch drum 2, so that the staff can observe the operation of the winch drum 2. Of course, in other embodiments, the length of the observation port 701 can also be equal to the axial length of the winch drum 2.

The dual-drive electric winch of the present invention has the following characteristics:

(1) The drive motor 3 is installed at 90° to the winch drum 2, and a right-angle commutator 4 is used in the middle to connect the planetary reducer 5. The axial size of the entire winch is small, the structure is more compact, and the installation is more convenient;

(2) The double-drive winch uses two drive motors 3. The two drive motors 3 can work at the same time to obtain double the lifting force;

(3) When the left drive motor 3 fails, the right drive motor 3 can be used so that the winch can still be used. When the right drive motor 3 fails, the left drive motor 3 can be used so that the winch can continue to work, and maintenance can be carried out without stopping the machine and affecting production.

(4) Dual-drive electric winch can be used on 12,000m and 15,000m drilling rigs.

Embodiment 2 of the dual-drive electric winch provided by the present invention:

The main difference between it and Example 1 is:

In Example 1, the motor mounting plate section on the winch frame is cantilevered outside the base, and the driving motor is driven outside the motor mounting plate and is also arranged in a cantilevered shape.

In this embodiment, the projection of the support vertical plate in the up and down directions can fall on the base, that is, the area of the base is larger. At this time, the driving motor is fixed by setting a support seat on the base, and there is no need to connect it to the support vertical plate through a motor connecting plate.

Embodiment 3 of the dual-drive electric winch provided by the present invention:

The main difference between it and Example 1 is:

In Example 1, the interior of the winch drum is a hollow structure, and is relatively fixed to the output shaft of the planetary reducer through a flange.

In this embodiment, the winch drum adopts a solid structure, and sockets that cooperate with the output shaft of the planetary reducer to prevent rotation are provided at both ends of the winch drum. The winch drum is connected to the output shaft of the planetary reducer by radial bolts.

According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The double-drive electric winch is characterized by comprising a winch frame, a winch drum, a driving motor, a right-angle commutator and a planetary reducer;

the winch drum is rotationally assembled in the winch frame, a steel wire rope is wound on the winch drum, and a through hole for the steel wire rope to pass through is formed in the winch frame;

The two driving motors are respectively arranged outside the winch frame and are positioned at the left side and the right side of the axial direction of the winch drum, and the axis of the output shaft of the driving motor is perpendicular to the axis of the winch drum;

The right-angle reverser and the planetary reducer are respectively provided with two right-angle reversers, the two right-angle reversers are all positioned outside the winch frame, the two planetary reducers are all positioned in the winch frame, the input end of the right-angle reverser is in transmission connection with the corresponding driving motor, and the output end of the right-angle reverser is in transmission connection with the corresponding planetary reducer;

the winch drum is connected between the output shafts of the two planetary reducers so as to rotate along with the output shafts of the planetary reducers.

2. The dual-drive electric winch according to claim 1, wherein the two driving motors are symmetrically arranged at the left and right sides of the winch drum in the axial direction.

3. The double-drive electric winch according to claim 1, wherein the winch frame comprises a base and two supporting vertical plates, the base is provided with a penetrating hole for the steel wire rope to pass through, the two supporting vertical plates are provided with two roller mounting plate sections and motor mounting plate sections which are integrally formed, the winch roller is rotationally assembled between the two roller mounting plate sections, the roller mounting plate sections 102 of the two supporting vertical plates are respectively connected to the left side and the right side of the base, the motor mounting plate sections of the two supporting vertical plates are suspended outside the base, the driving motor is provided with a motor connecting plate, and the motor connecting plate is connected with the corresponding motor mounting plate sections to enable the driving motor to be arranged in a suspended mode.

4. The dual-drive electric winch according to claim 3, wherein reinforcing rods are connected between the two motor mounting plate sections and between the two motor drum mounting plate sections 102; at least two reinforcing plates are connected between the base and one side of the two motor mounting plate sections, which are opposite to each other.

5. The double-drive electric winch according to claim 3 or 4, wherein the winch drum is hollow, and the left end and the right end of the winch drum are respectively coaxially sleeved outside the output shafts of the two planetary reducers; the output shaft of the planetary reducer is coaxially connected with a first flange, the winch drum is coaxially connected with a second flange, and the first flange is connected with the second flange.

6. The dual-drive electric winch according to claim 5, wherein a fixed plate is arranged on the base, an angle-adjustable crank arm is arranged on the fixed plate, a rope guiding rod is connected to the end portion of the crank arm, the rope guiding rod is located between the first flange and the second flange, and the axis of the rope guiding rod is parallel to the axis of the winch drum.

7. The dual-drive electric winch according to claim 3 or 4, wherein the winch drum housing is provided with an inverted-U-shaped protection plate, the inverted-U-shaped protection plate comprises a top plate and side plates connected to the front side and the rear side of the top plate, the top plate is arranged above the two drum mounting plate sections, and an avoidance opening for avoiding the motor mounting plate sections is formed in the joint of the top plate and the side plates so that the side plates are located on the inner sides of the two drum mounting plate sections.

8. The dual-drive electric winch according to claim 7, wherein the top plate is provided with an observation port, and the length of the observation port is not smaller than the axial length of the winch drum.